Impact of 3D base station antenna in random heterogeneous cellular networks
Impact of 3D base station antenna in random heterogeneous cellular networks
复制标题
3D 基站天线对随机异构蜂窝网络的影响
DOI：
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发表时间：
2014
期刊：
影响因子：
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通讯作者：
R. Heath
中科院分区：
文献类型：
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作者：
Xiao Li;T. Bai;R. Heath
本文研究了三维基站（BS）天线方向图对下行随机异构蜂窝网络的影响。为了评估向下倾斜和垂直波束宽度的影响，我们提出了一个基于随机几何（模拟BS位置）和随机形状理论（模拟建筑几何）的数学框架。在此框架下，我们研究了不同天线参数对网络覆盖和区域频谱效率的影响。通过仿真，我们发现缩小微型蜂窝的垂直波束宽度必须伴随着向下倾斜，以提高覆盖范围和容量。我们还发现，高建筑密度会导致网络性能的提高，从而促使在密集的城市地区部署异构网络。
In this paper, we study the influence of 3-dimensional (3D) base station (BS) antenna patterns on the of downlink random heterogeneous cellular networks. To assess the impact of downtilt and vertical beamwidth, we propose a mathematical framework based on stochastic geometry (to model BS locations) and random shape theory (to model building geometry). Using this framework, we study the impact of different antenna parameters at the pico cell on the coverage and area spectral efficiency of the network. Through simulations we find that narrowing the vertical beamwidth of the pico cell must be accompanied by downtilt to result in improved coverage and capacity. We also find that high building density leads to improved network performance, motivating the deployment of heterogeneous networks in dense urban areas.